/*
 * Copyright 2006-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package asphalt2.util
{
	import mx.containers.Canvas;
	import mx.core.Application;
	import mx.managers.ISystemManager;
	import mx.managers.PopUpManager;
	/**
	 * 透明なアプリケーションモーダルクラス
	 * @author c9katayama
	 **/
	public class ApplicationModal
	{
		private static var modal:Canvas;
		private static var count:int;
		
		public static function show():void{
			count++;
			if(modal == null){
				modal = new Canvas();
				modal.alpha=0;
				modal.setStyle("modalTransparencyColor",0xFFFFFF);
				modal.setStyle("modalTransparency",0);
				modal.setStyle("modalTransparencyDuration",0);
				modal.setStyle("modalTransparencyBlur",0);
				var app:Application = Application(Application.application);
				PopUpManager.addPopUp(modal, app,true);
			}
		}
		public static function hide():void{
			if(count > 0){
				count--;
				if(count == 0){
					reset();
				}
			}
		}
		public static function reset():void{
			if(modal != null){
				PopUpManager.removePopUp(modal);
				modal = null;
			}
			count = 0;			
		}
	}
}